X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2Futil%2FToHTML.java;h=3d52562e172a4c316efc2557fd2d5541a495f2f8;hb=aaa5d101e054dc548e7ef7831b1fcb7913a4d4d4;hp=4415e3d95b7729141b1ed6fd56ba644fc1c2cdb6;hpb=373f281f7a7988773f6e469717ce6f972cb07e96;p=sbp.git

diff --git a/src/edu/berkeley/sbp/util/ToHTML.java b/src/edu/berkeley/sbp/util/ToHTML.java
index 4415e3d..3d52562 100644
--- a/src/edu/berkeley/sbp/util/ToHTML.java
+++ b/src/edu/berkeley/sbp/util/ToHTML.java
@@ -3,5 +3,93 @@ import java.io.*;
 import java.util.*;
 
 public interface ToHTML {
-    public void ToHTML(PrintWriter p);
+    public void toHTML(HTML h);
+
+    public static class HTML {
+        private final StringBuffer sb;
+        public HTML(StringBuffer sb) { this.sb = sb; }
+
+        public void appendLiterally(String s) { sb.append(s); }
+        public void appendLiterally(char c) { sb.append(c); }
+
+        public void appendText(String s) {
+            sb.append(escapify(s));
+        }
+
+        public String escapify(String s) {
+            StringBuffer sb = new StringBuffer();
+            for(int i=0; i<s.length(); i++) {
+                char c = s.charAt(i);
+                switch(c) {
+                    case '&':  sb.append("&amp;"); break;
+                    case '<':  sb.append("&lt;"); break;
+                    case '>':  sb.append("&gt;"); break;
+                    case '\'': sb.append("&apos;"); break;
+                    case '\"': sb.append("&quot;"); break;
+                    default:
+                        if (c < 32 || c >= 127) {
+                            sb.append("&#x" + Integer.toString((int)(c & 0xffff), 16) + ";");
+                        } else {
+                            sb.append(c);
+                        }
+                }
+            }
+            return sb.toString();
+        }
+
+        public void entity(int entity) { appendLiterally("&#"+entity+";"); }
+        public void entity(String entity) { appendLiterally("&"+entity+";"); }
+
+        public void append(Object o) {
+            if (o==null)                    appendLiterally("<tt><font color=red>null</font></tt>");
+            else if (o instanceof ToHTML)   ((ToHTML)o).toHTML(this);
+            else if (o instanceof Object[]) append((Object[])o);
+            else                            appendText(o.toString());
+        }
+        public void append(int i) { sb.append(i); }
+        public void append(char c) { append(""+c); }
+
+        public void append(Object[] o) {
+            for(int i=0; i<o.length; i++) {
+                if (i>0) append(' ');
+                append(o[i]);
+            }
+        }
+
+        public void tag(String s) {
+            appendLiterally("<");
+            appendLiterally(s);
+            appendLiterally("/>");
+        }
+        public void openTag(String s) { openTag(s, null); }
+        public void openTag(String s, Object[] attrs) {
+            appendLiterally("<");
+            appendLiterally(s);
+            if (attrs != null)
+                for(int i=0; i<attrs.length; i+=2) {
+                    appendLiterally(' ');
+                    append(attrs[i]);
+                    appendLiterally("=\'");
+                    append(attrs[i+1]);
+                    appendLiterally("\'");
+                }
+            appendLiterally(">");
+        }
+        public void closeTag(String s) {
+            appendLiterally("</");
+            appendLiterally(s);
+            appendLiterally(">");
+        }
+        public void tag(String s, Object o) { tag(s, null, o); }
+        public void tag(String s, Object[] attrs, Object o) {
+            if (s != null) openTag(s, attrs);
+            append(o);
+            if (s != null) {
+                appendLiterally("</");
+                appendLiterally(s);
+                appendLiterally(">");
+            }
+        }
+
+    }
 }